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Match multiline text using regular expression
...: changes the behavior of the ^ and $ anchors. DOTALL mode was originally called "single-line" (and still is in some flavors, including Perl and .NET), and it has always caused similar confusion. We're fortunate that the Java devs went with the more descriptive name in that case, but there was no ...
How to dynamically compose an OR query filter in Django?
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Thanks! This was what I was looking for :) Didn't know you could do |=
– Jack Ha
May 12 '09 at 12:43
23
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Can't create handler inside thread that has not called Looper.prepare()
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You're calling it from a worker thread. You need to call Toast.makeText() (and most other functions dealing with the UI) from within the main thread. You could use a handler, for example.
Look up Communicating with the UI Thread in...
How to make CSS3 rounded corners hide overflow in Chrome/Opera
...ound corners on a parent div to mask content from its childen. overflow: hidden works in simple situations, but breaks in webkit based browsers and Opera when the parent is positioned relatively or absolutely.
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What's the difference between an argument and a parameter?
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A parameter is a variable in a method definition. When a method is called, the arguments are the data you pass into the method's parameters.
public void MyMethod(string myParam) { }
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string myArg1 = "this is my argument";
myClass.MyMethod(myArg1);
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How to change current Theme at runtime in Android [duplicate]
...edInstanceState) {
super.onCreate(savedInstanceState);
// Call setTheme before creation of any(!) View.
setTheme(android.R.style.Theme_Dark);
// ...
setContentView(R.layout.main);
}
Edit
If you call setTheme after super.onCreate(savedInstanceState);...
Activity has leaked ServiceConnection @438030a8 that was original
...ning, even after the activity that started it has had its onDestroy method called, you should first use startService.
The android docs for startService state:
Using startService() overrides the default service lifetime that is managed by bindService(Intent, ServiceConnection, int): it requires ...
Calling a static method on a generic type parameter
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In this case you should just call the static method on the constrainted type directly. C# (and the CLR) do not support virtual static methods. So:
T.StaticMethodOnSomeBaseClassThatReturnsCollection
...can be no different than:
SomeBaseClass.StaticMe...
Is delete this allowed?
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The C++ FAQ Lite has a entry specifically for this
https://isocpp.org/wiki/faq/freestore-mgmt#delete-this
I think this quote sums it up nicely
As long as you're careful, it's OK for an object to commit suicide (delete this).
...
Evaluate expression given as a string
...ss("5+5")
[1] "character"
> class(parse(text="5+5"))
[1] "expression"
Calling eval() invokes many behaviours, some are not immediately obvious:
> class(eval(parse(text="5+5")))
[1] "numeric"
> class(eval(parse(text="gray")))
[1] "function"
> class(eval(parse(text="blue")))
Error in ev...